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Discussion Starter · #1 ·

I've seen the same error reported by several people, but the conditions seems different so here is my scenario. Maybe somebody can give a hint.

Occasionally, when I use Chademo then when the charging stops the process somehow fails and I get the 'EV System service required" error. Driving distances are not displayed and the car enters to some degraded mode. Can be driven; EV driving seems ok, slow charging works, fast charging I didn't try. Engine works, but with limited power.
The problem popped up about 3 times in 2 years, but it always happened with the same charger station. I used other stations (CHAdeMO) as well. I am not sure about the numbers, maybe 30% of my fast charging happened with this station.
After this I need to take the car to the garage, they clear the error and things are working again. This was the point, when we went deeper and I asked for a solution. They proposed replacing some module within the battery and with that the CHAdeMO cable has to be replaced as well. The cost is high and I am not convinced that there is a problem within the car and their proposed fix will work.

As a summary
1. problem happened only with one charger so far (3 times in 2 years)
2. it happens when the charging stops and there some clicking/communication is happening in that stop process
3. when the error is present, then the cars enter to degraded mode
4. after clearing the error the car works without any problem

At this point I am not using that charger anymore, but I am bit afraid to use fast charging in general.

// Tibor
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